Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A method performed by a user equipment device (UE), comprising: receiving a dedicated notification message from a base station, wherein the dedicated notification message indicates an establishment of at least one Signaling Radio Bearer (SRB) using a Packet Data Convergence Protocol (PDCP) layer in a transparent mode; and establishing the at least one SRB using the PDCP layer in a transparent mode prior to an establishment of Access Stratum (AS) security, wherein the at least one SRB is utilized in a first communication between the UE and the base station prior to establishment of the AS security and a second SRB including PDCP layer information is utilized in a second communication between the UE and the base station after establishment of the AS security.
This invention relates to wireless communication systems, specifically methods for establishing secure communication channels between a user equipment device (UE) and a base station. The problem addressed is the delay in establishing secure signaling radio bearers (SRBs) due to the requirement for Access Stratum (AS) security setup, which can hinder initial communication efficiency. The method involves a UE receiving a dedicated notification message from a base station, indicating the establishment of at least one SRB using the Packet Data Convergence Protocol (PDCP) layer in a transparent mode. In transparent mode, the PDCP layer does not perform encryption or integrity protection, allowing faster SRB setup. The UE then establishes this SRB before AS security is fully configured. This SRB is used for initial communication between the UE and the base station, while a second SRB, which includes PDCP layer security features, is used after AS security is established. This approach enables faster initial signaling while ensuring secure communication once AS security is active. The invention improves communication efficiency by reducing delays in SRB establishment without compromising security in subsequent communications.
2. The method of claim 1 , wherein the dedicated notification message is generated based on one of the following modes: a predefined mode, a preconfigured mode, and a terminal and base station negotiation.
This invention relates to wireless communication systems, specifically improving notification message handling between a terminal (e.g., a user device) and a base station. The problem addressed is the inefficiency in generating and transmitting dedicated notification messages, which can lead to delays, resource waste, or poor user experience. The method involves generating a dedicated notification message for a terminal in a wireless network, where the message is tailored to the terminal's specific needs. The notification message can be generated in one of three modes: a predefined mode, where the message format and content are set in advance; a preconfigured mode, where the message parameters are configured beforehand but can be adjusted; or a terminal and base station negotiation mode, where the message details are dynamically agreed upon between the terminal and the base station. This flexibility ensures efficient communication while adapting to different network conditions and device capabilities. The method may also include transmitting the generated message to the terminal, allowing for optimized resource usage and improved responsiveness in the network.
3. The method of claim 1 , wherein the dedicated notification message carries instructions for the at least one SRB to use the PDCP layer in the transparent mode.
4. A method performed by a base station, comprising: transmitting a dedicated notification message to a user equipment device (UE), wherein the dedicated notification message indicates an establishment of at least one Signaling Radio Bearer (SRB) using a Packet Data Convergence Protocol (PDCP) layer in a transparent mode; and establishing the at least one SRB using the PDCP layer in a transparent mode prior to an establishment of Access Stratum (AS) security, wherein the at least one SRB is utilized in a first communication between the UE and the base station prior to establishment of the AS security and a second SRB including PDCP layer information is utilized in a second communication between the UE and the base station after establishment of the AS security.
5. The method of claim 4 , wherein the dedicated notification message is generated based on one of the following modes: a predefined mode, a preconfigured mode, and a terminal and base station negotiation.
This invention relates to wireless communication systems, specifically to methods for generating dedicated notification messages in a network. The problem addressed is the need for efficient and flexible notification mechanisms between a base station and a terminal device, ensuring timely and context-aware communication. The method involves generating a dedicated notification message to inform a terminal device of specific network conditions or required actions. The notification message is generated based on one of three modes: a predefined mode, a preconfigured mode, or a terminal and base station negotiation mode. In the predefined mode, the notification message is generated according to fixed rules or templates stored in the base station. The preconfigured mode allows the notification content to be customized based on prior configurations, such as user preferences or service requirements. The negotiation mode involves dynamic interaction between the terminal and the base station to determine the optimal notification content, ensuring adaptability to real-time conditions. The method ensures that the terminal receives relevant and timely notifications, improving communication efficiency and user experience. The flexibility in selecting the generation mode allows the system to adapt to different scenarios, such as emergency alerts, service updates, or network optimization commands. This approach enhances the reliability and responsiveness of wireless communication systems.
6. The method of claim 4 , wherein the dedicated notification message carries instructions for the at least one SRB to use the PDCP layer in the transparent mode.
7. A user equipment device (UE), comprising: a receiver configured to receive a dedicated notification message from a base station, wherein the dedicated notification message indicates an establishment of at least one Signaling Radio Bearer (SRB) using a Packet Data Convergence Protocol (PDCP) layer in a transparent mode; and at least one processor configured to establish the at least one SRB using the PDCP layer in a transparent mode prior to an establishment of Access Stratum (AS) security, wherein the at least one SRB is utilized in a first communication between the UE and the base station prior to establishment of the AS security and a second SRB including PDCP layer information is utilized in a second communication between the UE and the base station after establishment of the AS security.
8. The user equipment device (UE) of claim 7 , wherein the dedicated notification message is generated based on one of the following modes: a predefined mode, a preconfigured mode, and a terminal and base station negotiation.
A system and method for generating dedicated notification messages in wireless communication networks addresses the need for efficient and flexible notification delivery to user equipment (UE) devices. The invention focuses on optimizing how notifications are transmitted between a base station and UE, ensuring timely and relevant information delivery while minimizing resource usage. The UE includes a notification processing module that generates dedicated notification messages based on one of three modes: a predefined mode, a preconfigured mode, or a terminal and base station negotiation mode. In the predefined mode, the notification message is generated according to a fixed set of rules or parameters stored in the UE. The preconfigured mode allows the UE to use configuration data received from the network to tailor the notification message. The negotiation mode involves dynamic interaction between the UE and the base station to determine the optimal notification format and content based on current network conditions and device capabilities. This approach enhances notification efficiency, reduces unnecessary signaling, and improves user experience by ensuring notifications are delivered in the most appropriate manner for the given context. The invention is particularly useful in scenarios where timely and accurate notifications are critical, such as emergency alerts, network status updates, or service announcements.
9. The user equipment device (UE) of claim 7 , wherein the dedicated notification message carries instructions for the at least one SRB to use simplified PDCP functions.
A wireless communication system involves user equipment (UE) devices that establish signaling radio bearers (SRBs) to exchange control plane messages with a network. These SRBs typically use full Protocol Data Convergence Protocol (PDCP) functions, which include features like integrity protection, ciphering, and sequence numbering. However, these full PDCP functions can introduce unnecessary overhead and latency for certain low-priority or non-critical signaling messages, impacting system efficiency. To address this, a UE device is configured to receive a dedicated notification message from the network. This message includes instructions for the UE to apply simplified PDCP functions to at least one SRB. Simplified PDCP functions exclude certain features, such as integrity protection or ciphering, while retaining essential functionality like sequence numbering if needed. By using simplified PDCP, the UE reduces processing overhead and latency for non-critical signaling, improving overall system performance without compromising security for sensitive messages. The UE dynamically adjusts PDCP operations based on the network's instructions, allowing flexible optimization of signaling efficiency. This approach is particularly useful in scenarios where low-latency or high-efficiency signaling is prioritized over full security measures for certain control plane messages.
10. A base station, comprising: a transmitter configured to transmit a dedicated notification message to a user equipment device (UE), wherein the dedicated notification message indicates an establishment of at least one Signaling Radio Bearer (SRBs) using a Packet Data Convergence Protocol (PDCP) layer in a transparent mode; and at least one processor configured to establish the at least one SRB using the PDCP layer in a transparent mode prior to an establishment of Access Stratum (AS) security, wherein the at least one SRB is utilized in a first communication between the UE and the base station prior to establishment of the AS security and a second SRB including PDCP layer information is utilized in a second communication between the UE and the base station after establishment of the AS security.
11. The base station of claim 10 , wherein the dedicated notification message is generated based on one of the following modes: a predefined mode, a preconfigured mode, and a terminal and base station negotiation.
This invention relates to wireless communication systems, specifically improving the efficiency of dedicated notification messages between a base station and a terminal device. The problem addressed is the need for flexible and efficient signaling mechanisms to convey important information, such as resource allocation or system updates, without excessive overhead or latency. The base station includes a processor configured to generate a dedicated notification message for transmission to a terminal device. The notification message is generated based on one of three modes: a predefined mode, where the message format and content are fixed in advance; a preconfigured mode, where the message parameters are set during an initial configuration phase; or a terminal and base station negotiation mode, where the message details are dynamically agreed upon through signaling exchanges. This flexibility allows the system to adapt to different operational scenarios, such as varying network conditions or device capabilities, while minimizing signaling overhead and ensuring timely delivery of critical information. The invention enhances communication efficiency by optimizing the generation and transmission of dedicated notifications, reducing unnecessary resource consumption and improving overall system performance.
12. The base station of claim 10 , wherein the dedicated notification message carries instructions for the at least one SRB to use simplified PDCP functions.
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April 6, 2021
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